.wrapper {
  width: 70%;
  margin: 0 auto;
}
/* CSS Reset */
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
    box-sizing: border-box; /* Ensure padding and borders are included in element sizes */
}

/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
    display: block;
}

body {
    line-height: 1;
}

ol, ul {
    list-style: none;
}

blockquote, q {
    quotes: none;
}

blockquote:before, blockquote:after,
q:before, q:after {
    content: '';
    content: none;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

/* Custom Styles */
body {
    background: white;
    color: black;
    font-family: 'Open Sans', sans-serif;
}

* {
    margin: 0;
    padding: 0
}
/* em和i斜体的字体不倾斜 */
em,
i {
    font-style: normal
}
/* 去掉li的小圆点 */
li {
    list-style: none
}
img {
    /* 照顾低版本浏览器 果然图片外面包含了链接会有边框的问题 */
    border: 0;
    /* 取消图片底侧有空白缝隙的问题 */
    vertical-align: middle
}
button {
    /* 当我们鼠标经过button按钮的时候,鼠标变成小手 */
    cursor: pointer
}
a {
    color : #666;
    text-decoration: none
}
a:hover {
    color: black;
}
button,
input {
    font-family: Microsoft YaHei, Heiti SC, tahoma, arial, Hiragino Sans GB, "\5B8B\4F53", sans-serif
}
body {
    /* css3 抗锯齿形 让文字显示的更加清晰 */
    /* "\5B8B\4F53"就是宋体的意思,这样浏览器兼容性比较好 */
    -webkit-font-smoothing: antialiased;
    /*height: 1000px;*/
    background: linear-gradient(to bottom right ,  #FFC1C1, #008B8B);
    font: 12px/1.5 Microsoft YaHei, Heiti SC, tahoma, arial, Hiragino Sans GB, "\5B8B\4F53", sansserif;
    color: #666
}
.hide,
.none {
    display: none
}
/* 清除浮动 */
.clearfix:after {
visibility: hidden;
    clear: both;
    display: block;
    content: ".";
    height: 0
}
.clearfix {
    *zoom: 1
}

